diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index b28711eeab71..53edbf1d8963 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1198,8 +1198,16 @@ static int sci_handle_fifo_overrun(struct uart_port *port) status = s->ops->read_reg(port, s->params->overrun_reg); if (status & s->params->overrun_mask) { - status &= ~s->params->overrun_mask; - s->ops->write_reg(port, s->params->overrun_reg, status); + if (s->type == SCI_PORT_RSCI) { + /* + * All of the CFCLR_*C clearing bits match the corresponding + * CSR_*status bits. So, reuse the overrun mask for clearing. + */ + s->ops->clear_SCxSR(port, s->params->overrun_mask); + } else { + status &= ~s->params->overrun_mask; + s->ops->write_reg(port, s->params->overrun_reg, status); + } port->icount.overrun++; |